My idea with the coating was to make things faster and easier. I hate greasing the device, then putting the mica washer in place and greasing that, watch it fall on the carpet, pick it up and clean it off. More grease, more mess, more anger!!!
I haven't tested the coating yet but I think it's going to be a success.

I've been busy stripping down my big subwoofer amp to make some improvements and to finish some of the features that didn't get done the first time through.
I'm removing the Linkwitz Transform in favour of a 10 band EQ to custom tailor the bass to the location. Too much fun!

I was actually thinking about floor tiles (with added heat spreader bars) to begin with (for smaller scale amplifier). My new headphone amp uses glass for a heatsink. My very first amp uses wood heatsink with a heat spreader (and it still works well). Then I remembered that the clayback stoves got by on ceramic. . . very well. I think that ceramic (with inbuilt heat spreader) might could do several kilowatts.

I'm not crazy about the navigation of this section - gotta scroll down to the bottom of the page to goto the last thread page.

Magura, this carbon you are talking about, it has good heat conducting properties? Is it electrically conductive? I seldom make an amp that gets as hot as some of the stuff you do, most of mine are fairly low bias class AB and I use heatsinks that are usually more than big enough.

Dan! My subwoofer is nearly 5 years old and is definitely NOT portable - nearly 250 pounds with 2 - 18" subwoofers it stays put.
The amp is what I'm working on, I have been making some refinements to it (it was a project from last year. See it HERE during temperature testing. It's sitting on top of the sub) that I didn't get around to doing at the time (burned myself out).

Yes, the carbon has heat conducting properties close to that of copper, but is directional (about 10% from what I can measure). It is conductive, just like all other types of carbon, but not as conductive as metal, so it lowers the capacitance a bit.
My amps has lately been running rather cool, due to bigger heatsinks and the above mentioned carbon. 45C at worst, which is not all that bad for a 20W SE class A.
Where I could see a benefit to your projects from the carbon, is to even out temp. differences between devices, and to limit the capacitance between the sink and the device.

It also allows for a pretty radical design, as you can transport the heat over fairly long distance, so the output devices and the heatsinks can be pretty far from each other.

"It also allows for a pretty radical design, as you can transport the heat over fairly long distance, so the output devices and the heatsinks can be pretty far from each other."

Now THAT would be cool (and none of those pesky heat pipes ). I like the idea of keeping everything at the same temp also, I feel the mounting angle I used in my 6 channel amp is not thick enough to do this even though I haven't noticed any thermal drift.
Options, options. I'm planning a lowish power class A integrated amp later in the winter and I'll be exploring all the "angles"